Analysis of interatomic Contacts of Structural Units in PDB entry:
3CAI


Contacts of Structural Units (CSU) are derived with the CSU software (Sobolev V., Sorokine A., Prilusky J., Abola E.E. and Edelman M. (1999) Automated analysis of interatomic contacts in proteins. Bioinformatics, 15, 327-332).
For CSU analysis of other PDB entry

This page provides analyses of contacts formed by:
For analysis of ligand-protein contacts, use: 3D structure can be seen in additional window with STING software for 3CAI entry

There are 2 chains in PDB entry 3CAI (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 TYR 3GLY 398
B
 TYR 3GLY 398
Residue contacts

1. List of contacts for up to 10 consecutive residues:
Chain ID from residue number to residue number


2. Detailed analyses of contacts for any single residue:
Residue number chain ID
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There are 42 helices in PDB entry 3CAI. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
A
4 11Right-handed alpha
Helix 2
2
A
23 27Right-handed 310
Helix 3
3
A
31 45Right-handed alpha
Helix 4
4
A
53 75Right-handed alpha
Helix 5
5
A
77 79Right-handed 310
Helix 6
6
A
86 98Right-handed alpha
Helix 7
7
A
99 103Right-handed 310
Helix 8
8
A
115 118Right-handed 310
Helix 9
9
A
119 130Right-handed alpha
Helix 10
10
A
146 148Right-handed 310
Helix 11
11
A
149 154Right-handed alpha
Helix 12
12
A
176 186Right-handed alpha
Helix 13
13
A
204 209Right-handed alpha
Helix 14
14
A
218 221Right-handed 310
Helix 15
15
A
232 238Right-handed alpha
Helix 16
16
A
249 255Right-handed 310
Helix 17
17
A
260 276Right-handed alpha
Helix 18
18
A
284 313Right-handed alpha
Helix 19
19
A
338 349Right-handed alpha
Helix 20
20
A
359 365Right-handed alpha
Helix 21
21
A
383 396Right-handed alpha
Helix 22
22
B
4 11Right-handed alpha
Helix 23
23
B
23 27Right-handed 310
Helix 24
24
B
31 45Right-handed alpha
Helix 25
25
B
53 75Right-handed alpha
Helix 26
26
B
77 79Right-handed 310
Helix 27
27
B
86 98Right-handed alpha
Helix 28
28
B
99 103Right-handed 310
Helix 29
29
B
115 118Right-handed 310
Helix 30
30
B
119 130Right-handed alpha
Helix 31
31
B
146 148Right-handed 310
Helix 32
32
B
149 154Right-handed alpha
Helix 33
33
B
176 186Right-handed alpha
Helix 34
34
B
204 209Right-handed alpha
Helix 35
35
B
218 221Right-handed 310
Helix 36
36
B
232 239Right-handed 310
Helix 37
37
B
249 255Right-handed 310
Helix 38
38
B
260 276Right-handed alpha
Helix 39
39
B
284 314Right-handed alpha
Helix 40
40
B
338 349Right-handed alpha
Helix 41
41
B
359 365Right-handed alpha
Helix 42
42
B
383 396Right-handed alpha
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There are 6 sheets in PDB entry 3CAI. Click on sheet of interest to get list of strands forming it: A, B, C, D, E, F,

There are 2 strands in A sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
A
20 21first strand
Strand 2
A
351 352parallel
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There are 7 strands in B sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
A
81 84first strand
Strand 2
A
226 230anti-parallel
Strand 3
A
212 216anti-parallel
Strand 4
A
189 193parallel
Strand 5
A
158 164parallel
Strand 6
A
107 111parallel
Strand 7
A
132 136parallel
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There are 4 strands in C sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
A
317 319first strand
Strand 2
A
329 334anti-parallel
Strand 3
A
374 377anti-parallel
Strand 4
A
354 355anti-parallel
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There are 2 strands in D sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
20 21first strand
Strand 2
B
351 352parallel
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There are 7 strands in E sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
81 84first strand
Strand 2
B
226 230anti-parallel
Strand 3
B
212 216anti-parallel
Strand 4
B
189 193parallel
Strand 5
B
158 164parallel
Strand 6
B
107 111parallel
Strand 7
B
132 136parallel
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There are 4 strands in F sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
317 319first strand
Strand 2
B
329 334anti-parallel
Strand 3
B
373 377anti-parallel
Strand 4
B
354 356anti-parallel
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